A Multi-Objective Density Restricted Genetic Algorithm for the Vehicle Routing Problem with Time Windows
نویسندگان
چکیده
The Vehicle Routing Problem with Time Windows (VRPTW) is a complex combinatorial optimisation problem which can be seen as a combination of two well-known sub-problems: the Travelling Salesman Problem and the Bin Packing Problem. Relevant objectives include minimising the number of vehicles and the total travelling distance for delivering demand to customers, while complying with capacity and time constraints. This paper proposes a novel density restricted genetic algorithm for solving VRPTW as a biobjective problem, incorporating a diversity ratio which gives information about, and enables restriction of, the density of solutions. We have applied our algorithm to a publicly available set of benchmark instances, resulting in solutions that are competitive compared with others previously published.
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